Amvex Digital and Analog Vacuum Regulator
Amvex · Model Digital and Analog Vacuum Regulator
Patented state of the art Digital Display Technology Digital eliminates moving parts, extending the life of the vacuum regulator Improved accuracy over analog. Accuracy is within +/- 1% Easy to read display Bars Represent Low, Medium, High and Full ranges Color coding range on digital display corresponds to an analog gauge 0 - 300 mmHg Gauge is standard offering Easy to upgrade to Intermittent or Digital right in the facility Same housing for both Continuous and Intermittent regulator Removable back plate and gasket for easy cleaning Reinforced inlet and outlet ports to prevent breakage Easily serviced and cleaned with cold sterilant Double O-Ring regulating module.
Key tips
- ·Don't extend filter/tubing replacement intervals to save cost - this is an infection-control issue, not just a performance one.
- ·Flow accuracy drift is often the earliest sign of a failing sensor, well before an outright alarm.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Will not reach or hold set vacuum
HighSymptoms: Regulator will not pull the set vacuum, gauge drifts, or vacuum bleeds off.
Root cause: Worn regulator diaphragm / valve seat, a cracked gauge, or a wall-supply / connector leak.
Gauge inaccurate
MediumSymptoms: Displayed vacuum does not match a reference gauge.
Root cause: Gauge mechanism drift or damage.
Leak at the DISS / wall connector
MediumSymptoms: Hiss, poor vacuum at the patient, will not seal to the wall outlet.
Root cause: Worn DISS nut / nipple seal or a damaged wall adapter.
Mode / knob mechanism fault
LowSymptoms: Regulation vs full-vacuum mode selector loose or ineffective, knob stripped.
Root cause: Worn selector / control knob.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Regulator diaphragm / valve kit
Class Periodic replacementRel. cost $$R&R Fairly easy
Vacuum gauge
Class Major service partRel. cost $$R&R Fairly easy
DISS / wall-connector seals
Class Periodic replacementRel. cost $R&R Easy
Control knob / selector
Class Major service partRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Regulator diaphragm / valve kit | Periodic replacement | $$ | Fairly easy |
| Vacuum gauge | Major service part | $$ | Fairly easy |
| DISS / wall-connector seals | Periodic replacement | $ | Easy |
| Control knob / selector | Major service part | $ | Fairly easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Filter and tubing replacement
- ·Flow accuracy check
- ·Annual full PM
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Will not hold set vacuum
- Connect a known-good reference gauge and compare readings.
- Cap the patient port and check the vacuum holds.
- Inspect the DISS connector and wall outlet for leaks.
- Rebuild the regulator with the diaphragm / valve kit.
- Re-verify against the reference gauge across the range.
Symptom: Gauge reads wrong
- Compare to a calibrated reference at several set points.
- Tap the gauge to rule out a stuck needle.
- Replace the gauge.
- Re-verify.
- Label with the calibration date.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Respiratory Therapy department
- Patient floors
- Emergency Department
- Home care (portable units)
Documents & Manuals
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